My coastal has been almost as crappy an eater as our royal. usually 2 months between feedings, and constant refusals. Live, fresh kill, F/T, rats, quail (never mice) and she is still almost 7 feet long.
I'd wait.
I actually found my coasty was more interested when I offered larger prey so I quickly jumped to small rats. I think Will Byrd says something about offering larger meals on his page, but don't quote me there. I'll have to look. It helped here for a while but now I'm going into the 3 month zone. She's a picky one LOL!
You'll be fine.